WID-SEC-W-2026-2008

Vulnerability from csaf_certbund - Published: 2026-06-18 22:00 - Updated: 2026-08-31 22:00
Summary
expat: Mehrere Schwachstellen
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Expat ist ein XML Parser, der in der Programmiersprache-C geschrieben ist.
Angriff: Ein lokaler Angreifer kann mehrere Schwachstellen in expat ausnutzen, um einen Denial of Service Angriff durchzuführen oder potentiell Code auszuführen.
Betroffene Betriebssysteme: - Linux - UNIX
CVE-2026-56131
Affected products
Product Identifier Version Remediation
IBM AIX 7.3
IBM / AIX
 cpe:/o:ibm:aix:7.3 7.3
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
OpenBSD OpenBSD 7.8
OpenBSD / OpenBSD
 cpe:/a:openbsd:openbsd:7.8 7.8
OpenBSD OpenBSD 7.9
OpenBSD / OpenBSD
 cpe:/a:openbsd:openbsd:7.9 7.9
Open Source expat <2.8.2
Open Source / expat
 <2.8.2
Meinberg LANTIME <V7.10.013
Meinberg / LANTIME
 <V7.10.013
IBM VIOS 4.1
IBM / VIOS
 cpe:/a:ibm:vios:4.1 4.1
Amazon Linux 2
Amazon
 cpe:/o:amazon:linux_2:- —
CVE-2026-56132
Affected products
Known affected 9 products, the same list as for CVE-2026-56131
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Expat ist ein XML Parser, der in der Programmiersprache-C geschrieben ist.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann mehrere Schwachstellen in expat ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren oder potentiell Code auszuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-2008 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2008.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-2008 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2008"
      },
      {
        "category": "external",
        "summary": "NIST Vulnerability Database vom 2026-06-18",
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56131"
      },
      {
        "category": "external",
        "summary": "NIST Vulnerability Database vom 2026-06-18",
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56132"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:30647 vom 2026-06-28",
        "url": "https://access.redhat.com/errata/RHSA-2026:30647"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2-2026-3495 vom 2026-07-08",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2-2026-3495.html"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 7280107 vom 2026-07-15",
        "url": "https://www.ibm.com/support/pages/node/7280107"
      },
      {
        "category": "external",
        "summary": "Meinberg Security Advisory MBGSA-2026.05 vom 2026-07-21",
        "url": "http://news.meinberg.de/680/"
      },
      {
        "category": "external",
        "summary": "OpenBSD 7.8 Errata vom 2026-08-22",
        "url": "http://www.openbsd.org/errata78.html"
      },
      {
        "category": "external",
        "summary": "OpenBSD 7.9 Errata vom 2026-08-22",
        "url": "https://www.openbsd.org/errata79.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2-2026-3880 vom 2026-09-01",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2-2026-3880.html"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS2FIREFOX-2026-064 vom 2026-09-01",
        "url": "https://alas.aws.amazon.com/AL2/ALAS2FIREFOX-2026-064.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4765 vom 2026-08-31",
        "url": "https://lists.debian.org/debian-lts-announce/2026/08/msg00057.html"
      }
    ],
    "source_lang": "en-US",
    "title": "expat: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-08-31T22:00:00.000+00:00",
      "generator": {
        "date": "2026-09-01T10:54:33.554+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-2008",
      "initial_release_date": "2026-06-18T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-06-18T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-06-28T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-07-07T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2026-07-15T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von IBM aufgenommen"
        },
        {
          "date": "2026-07-21T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Meinberg aufgenommen"
        },
        {
          "date": "2026-08-23T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates aufgenommen"
        },
        {
          "date": "2026-08-31T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Amazon und Debian aufgenommen"
        }
      ],
      "status": "final",
      "version": "7"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Amazon Linux 2",
            "product": {
              "name": "Amazon Linux 2",
              "product_id": "398363",
              "product_identification_helper": {
                "cpe": "cpe:/o:amazon:linux_2:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Amazon"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "7.3",
                "product": {
                  "name": "IBM AIX 7.3",
                  "product_id": "1139691",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:ibm:aix:7.3"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "AIX"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "4.1",
                "product": {
                  "name": "IBM VIOS 4.1",
                  "product_id": "1522854",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:ibm:vios:4.1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "VIOS"
          }
        ],
        "category": "vendor",
        "name": "IBM"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV7.10.013",
                "product": {
                  "name": "Meinberg LANTIME \u003cV7.10.013",
                  "product_id": "T056848"
                }
              },
              {
                "category": "product_version",
                "name": "V7.10.013",
                "product": {
                  "name": "Meinberg LANTIME V7.10.013",
                  "product_id": "T056848-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:meinberg:lantime:v7.10.013"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "LANTIME"
          }
        ],
        "category": "vendor",
        "name": "Meinberg"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c2.8.2",
                "product": {
                  "name": "Open Source expat \u003c2.8.2",
                  "product_id": "T055629"
                }
              },
              {
                "category": "product_version",
                "name": "2.8.2",
                "product": {
                  "name": "Open Source expat 2.8.2",
                  "product_id": "T055629-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:expat:expat:2.8.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "expat"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "7.8",
                "product": {
                  "name": "OpenBSD OpenBSD 7.8",
                  "product_id": "T053173",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:openbsd:openbsd:7.8"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "7.9",
                "product": {
                  "name": "OpenBSD OpenBSD 7.9",
                  "product_id": "T058490",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:openbsd:openbsd:7.9"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "OpenBSD"
          }
        ],
        "category": "vendor",
        "name": "OpenBSD"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-56131",
      "product_status": {
        "known_affected": [
          "1139691",
          "2951",
          "67646",
          "T053173",
          "T058490",
          "T055629",
          "T056848",
          "1522854",
          "398363"
        ]
      },
      "release_date": "2026-06-18T22:00:00.000+00:00",
      "title": "CVE-2026-56131"
    },
    {
      "cve": "CVE-2026-56132",
      "product_status": {
        "known_affected": [
          "1139691",
          "2951",
          "67646",
          "T053173",
          "T058490",
          "T055629",
          "T056848",
          "1522854",
          "398363"
        ]
      },
      "release_date": "2026-06-18T22:00:00.000+00:00",
      "title": "CVE-2026-56132"
    }
  ]
}



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Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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